If you’ve ever seen the back end of a military jet, you’ve likely seen variable area nozzles. They’re used to adjust the exhaust flow out of the rear of a jet engine during supersonic flight and while ...

In the wake of flight and certification testing of the PW1500G, Pratt & Whitney and Bombardier have made the surprise decision to build the CSeries without a novel propulsion feature known as the ...

Any student new to the principles of fluid dynamics will be familiar with Bernoulli’s principle and the Venturi effect, where the speed of a liquid or gas increases when the size of the conduit it ...

PACCAR has filed a patent for a variable geometry turbine (VGT) that includes an adjustable nozzle and a controller. The nozzle is calibrated during normal operation by adjusting it towards a closed ...

Variable-area fan nozzles on the latest high-bypass engines could increase fuel efficiency and reduce airport noise. Pratt & Whitney is introducing the concept on its PW1100G for the Airbus A320NEO.

Since it is essential to design an aircraft engine nozzle to achieve IR signature suppression, an S-shaped nozzle (double serpentine nozzle) is applied so that the high temperature part of the engine ...